Sienna Miller's new man

Sienna Miller is dating actor Will Carter, according to sources in the UK. Miller, 25, who recently split from Jude Law, and Carter, 38, have been keepinfg their relationship strictly under wraps. They filmed a love scene together in Factory Girl, in which Sienna portrays Andy Warhol's Muse Edie Sedgwick. The source revealed, "Sienna is naturally very flirty and couldn't keep her hands off Will. They seemed to really get on and have seen each other whenever they can, usually in Los Angeles." The two stars were recently seen together at the Chateau Marmont in Los Angeles.The blonde beauty had a tumultuous, on-off relationship with Jude Law and split up after he was caught sleeping with his kids' nanny. They ended it for good in late 2006.